https://vivaldi.com/privacy/browser/
https://vivaldi.com/zerotracking/
Although it's based on Chromium, it's still nowhere near as bad as Chrome when it comes to Privacy. A lot of things that interact with Google itself can be turned off/disabled and it's up to the user on how much data they want to send to Google.
Hence why I find it the perfect Chrome browser when it comes to privacy, features and customizability.
As a mod, I haven't noticed any difference in speed before and after API changes.